import numpy as  np

arr_one = np.array([[1,2,3,4],[5,6,7,8],[9,10,11,12]])
arr_two = np.array([[1,2,3,4],[5,6,7,8],[9,10,11,12]])

print(arr_one+arr_two)
print(arr_one-arr_two)
print(arr_one*arr_two)
print(arr_one/arr_two)

import numpy as  np
arr_one= np.array([[1],[5],[9]])
arr_two=np.array([1,2,3,4])
